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Back to Grow Questions
Yellow leaves
Mrgrecoa
started grow question 4y ago
I have some problems here in my flowering pls need help
Open
Leaves. Curl up
Leaves. Color - Yellow
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Answer
BDar_medicine
answered grow question 4y ago
looks like light stress. how far are your lights away and what power? a basic tool in using is a lux meter app on my smart phone to help guide my way.
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Complain
Similar Grow Questions
Solved
Inigo_Chrontoya
Defoliate yellow leaves?
Should we remove these large yellow crusty leaves near the soil? The plants are at about day 38. I've heard people say you shouldn't defoliate this early in flower. Should I be concerned about these leaves dying off or is this normal?
Week 5
Leaves. Color - Yellow
5y ago
2
3
Solved
Janus_Garus
Yellow leaves young photoperiod girls
My photoperiod Barney's Farm girls 28 days young, some have lower yellow leaves, is this normal, they didn't get any nutritions yet and are still in a small pot, can I do something about?
Leaves. Color - Yellow
4y ago
4
6
Solved
SwissKush
What are my leaves telling me?
Is this light burn? Nutrient deficiency/excess? It is only happening on the top leaves, the lower leaves are just fine. The light is rather close to the plant, but she is outgrowing my tent. Thanks in advance for the help! I really appreciate it. 😀
Week 7
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
4y ago
2
1
Solved
Architect
WTF IS THIS
hello guys, is this deficiency? 50% coco 50% light mix because I thought that with 100% light mix I had toxicity, I did not add extra nutrients , humidity 35% something I will fix, also who knows why the package light mix biobiz says 1.2 ec while in the runoff EC Meter says 2.5
Leaves. Edges burnt
Leaves. Tips - Die
Leaves. Color - Yellow
4y ago
3
4
Solved
statzzz
My plant is starting to wilt. They also are getting yellow streaks. It is now 4 weeks old. Temp 83 Humidity 50 PH 6.2 EC 2040. This happened in my last grow also.. Please anyone.. Why is this happening. Thanks.
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color - Yellow
3y ago
1
3
Solved
La0laEsMia
Help determine why plants are yellowing
I've noticed my plant is turning yellow, starting from new fresh growth (old growth is not affected). I am seeing early stages on my other plants now. My PH runoff yesterday was 6.7. They are getting nutes. filtered water. light 65% 14 inches. Added Cal Mag last week, not helping
Week 9
Leaves. Color - Yellow
4y ago
2
2
Solved
Voltron1
Yellow leaves?
Any thoughts on the yellow leaves? Maybe nitrogen deficiency?
Week 6
Leaves. Color - Yellow
5y ago
2
Solved
Grazynka
She getting yellow
The ph is not good. I ordered different ph meter. I tested soil 6 times and adjusted ph it is somewhere around 5 -6. Should I give her some spray for the night? Any advice please?
Week 4
Leaves. Color - Yellow
3y ago
2
3
Solved
klimfish
Seedling leaf color is very light green.
I'm wondering if there is any reason to be concerned with the lighter color leaves of one of my plants? They are significantly more "lime green" than the other two. he one in question is the bottom one in the picture attached. It is clear how much darker in color others are.
Week 1
Leaves. Color - Yellow
4y ago
3
3
Solved
Kigfjcf
Tox/def
Nutrient burn ? Light stress?
Leaves. Edges burnt
Leaves. Color - Yellow
1y ago
1
Solved
Nat889
Why is the bottom two leaves turning yellow. The ph has not changed from 6.8.
Week 3
Leaves. Color - Yellow
4y ago
1
1
Solved
Ah_never_mind
The leaves have yellow spot on the blade its a small one though. Is it fine?
Week 5
Leaves. Color - Yellow
5y ago
2
2
Solved
SirSmokeALot333
Help what's this
Westcoast O.G day 64 watered her today with Calmag + Bigfruits greenbuzz liquids. Coming after work seeing this. Last feeding was on week 8 with some bat guano. Run off is 6.3 growing in allmix biobizz soil.
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
4
4
Solved
PeppaWutz
Yellow leaves at lower part of plant
Hey! Two of my bigger plants have some issue. The lower leaves turn yellow really fast and fall off. The others are ok but have a really small nute burn. What is this?
Leaves. Dropping off
Leaves. Color - Yellow
4y ago
1
1
Solved
greenfingers007
HELP What's this
Noticed some of my upper leaves have this coloring on and leaves are curling up is it light burn??? i'm 8 weeks in with this plant any help
Leaves. Curl up
5y ago
1
2
Solved
Buds2k22
Ppm on blueberry cheese auto in coco coir
My ppm on auto flower was at 850 during late flowering ! I tried to increase this fed it 2times last two days and the numbers are actually dropping ! Is this normal? I noticed a little yellowing on leaf’s so I’m starting to think over feeding even tho the ppm numbers ain’t up?
Buds. Not fattening
Leaves. Color - Yellow
Feeding. Other
3y ago
1
1
Solved
ROYSTER
How can i make it better.
Welcome all advice to make it better. Thank you.
Week 3
Leaves. Curl up
2y ago
2
2
Solved
Bennygen2
Is this nutrients
Does this look like a nutrition problem? Grown in bio bizz light mix she's a zkittlez authaven't done grow diary yet so can't link she's just gone on to 1ml per l of bio grow and has always been cal.mag also used pirana and nevana from advanced nutrients any help would be awesome
Leaves. Color - Yellow
Leaves. Color - Mottling
Feeding. Deficiences
3y ago
1
2
Solved
TripleCcannabis
Tried everything - Red spots almost everywhere. Turn from red to orange/yellow. Fungus?
Getting very frustrated with these speckles. Iv tried decreasing Cal Mend and B-52. Improving air flow. Cleaning the tent head to toe and the res. Iv tried using UC roots. Im really not sure what's going on and IDK what to try to fix it. Grow was going so well. This sucks.
Week 7
Leaves. Color - Yellow
Leaves. Color - Red or pink
Plant. Other
5y ago
2
5
Solved
Ishkabud
Yellowing cause?
What could this yellow and brown spotting be on the uppermost leaves? Also the curling? They are autos, i am giving them half dose of bloom and phospherous nutrients, as well as half dose cal-mag, temperature isnt overly high, watering every 2-3days until runoff.. bit confused
Leaves. Curl up
Leaves. Color - Mottling
1y ago
1
1